何謂絕緣系統？

超過105℃的絕緣系統,必須送UL測試證明此系統符合適用於高溫等級之熱老化規定要求或其餘類似規定考量。環境等即

UL 1446是根據IEC85標準，用來規範電氣產品（如：馬達、變壓器）之繞線絕緣材料，在某一溫度時熱老化、冷衝擊、震動應力、防潮、電氣絕緣等安全特性。

例如：在 YS-B (DASH 2B-19)絕緣系統中所列的材料（包括漆包線、凡立水、膠帶、引出線、線架、套管等）所組成的馬達、變壓器成品可符合UL1446/IEC85 130℃（Class B）的安全規範。　

環境等級 UL 840

Pollution Degree	enviroment
1	No pollution or only dry, nonconductive pollution. The pollution has no influence. 無汙染或僅乾燥,非導電物汙染,無汙染環境
2	Normally, only nonconductive pollution. However, a temporary conductivity caused by condensation may be expected. 正常,只有非導電物之汙染環境 ,僅可能有暫時性之導電集結物
3	Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation that is expected. 導電物汙染環境或乾燥,非導電物可能汙染集結
4	Pollution that generates persistent conductivity through conductive dust or rain and snow. 經由灰塵/雨水/雪之持續性導電物集結汙染

Pollution Degree	Steps can be taken to control the pollution degree at the creepage distance by design
1	can be achieved by the encapsulation or hermetic sealing of the product. For printed circuit boards, coatings may be used that comply with the performance criteria of Section 15.
2	can be achieved by reducing possibilities of condensation or high humidity at the creepage distance, through the provision of ventilation or the continuous application of heat, through the use of heaters or continuous energizing of the equipment when it is in use. Continuous energizing is considered to exist when the equipment is operated without interruption every day and 24 hours per day or when the equipment is operated with interruptions of a duration which do not permit cooling to the point of condensation to occur.
3	can be achieved by the use of appropriate enclosures which act to exclude or reduce environmental influences, particularly moisture in the form of water droplets.
4	---

絕緣間隙

溫昇測試

IEC 60034-1 Rotating electrical machines – Part 1: Rating and performance
Edition 12.0 2010-02

Table 7 – Limits of temperature rise of windings indirectly cooled by air		130 (B)			155 (F)			180 (H)
Method of measurement Th = Thermometer, R = Resistance, ETD = Embedded temperature detector		Th K	R K	ETD K	Th k	R K	ETD K	Th k	R K	ETD K
Item	Part of machine
1a)	AC windings of machines having outputs of 5 000 kW (or kVA) or more	-	80	85a	-	105	110a	-	125	130a
1b)	AC windings of machines having outputs above 200 kW (or kVA), but less than 5 000 kW (or kVA)	-	80	90a	-	105	115a	-	125	135a
1c)	AC windings of machines having outputs of 200 kW (or kVA) or less, other than those in items 1d) or 1e) b	-	80	-	-	105	-	-	125	-
1d)	AC windings of machines having rated outputs of less than 600 W (or VA) b	-		-	-	110	-	-	130	-
1e)	AC windings which are self-cooled without a fan (IC 40) and/or with encapsulated windings b	-		-	-	110	-	-	130	-
2	Windings of armatures having commutators			-	85	105	-	105	125	-
3	Field windings of a.c. and d.c. machines other than those in item 4			-	85	105	-	105	125	-
4a)	Field windings of synchronous machines with cylindrical rotors having a d.c. excitation winding embedded in slots, except synchronous induction motors			-	-	110	-	-	135	-
4b)	Insulated stationary field windings of d.c. machines having more than one layer			90	85	105	100	105	125	135
4c)	Low-resistance field windings of a.c. and d.c. machines having more than one layer and compensating windings of d.c. machines			-	100	100	-	125	125	-
4d)	Single-layer windings of a.c. and d.c. machines with exposed bare or varnished metal surfaces c			-	100	100	-	135	135	-
a For adjustment for high-voltage a.c. windings, see item 4 of Table 9. b With the application of the superposition test method to windings of machines rated at 200 kW (or kVA) or less with thermal classes 130 (B) and 155(F), the limits of temperature rise given for the resistance method may be exceeded by 5 K. c Also includes multiple layer windings, provided that the under layers are each in contact with the circulating primary coolant.

絕緣等級

Insulation Class(應用說明)UL 1004-1溫昇測試標準(IEC60085)
絕緣材料溫度等級	絕緣材料溫度等級	室溫25℃測試最高允許溫度 ℃感測法(電阻)
A	105℃	105(115)
E	120℃	115(125)
B	130℃	125(135)
F	155℃	150(160)
H	180℃	165(175)